Jar opener



FIG. 1 is a perspective view of a jar opener showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view of thereof;

FIG. 6 is a back view thereof; and,

FIG. 7 is a front view thereof.

The broken line showing of a jar in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a jar opener, as shown and described. 